Registry data as of Aug 27, 2026

Javier Chang, M.D.

Family Medicine Physician · Claremont, CA

Javier Chang, M.D. is a family medicine physician with a practice address in Claremont, California, and NPI 1558565366, issued on Jun 14, 2007. Check the license (California A86715, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1558565366
Name
Javier Chang
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A86715 CA
Self-reported in NPPES; status is on the state search
Practice location
1601 Monte Vista Ave Ste 190, Claremont, CA 91711
Phone
(909) 865-9977
Enumerated
Jun 14, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1601 Monte Vista Ave Ste 190

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bachar Ali, D.O.Family Medicine Physician1902358575
  2. Monique Burleigh Sanchez-Castro, M.D.Family Medicine Physician1205247855
  3. Nicholas ChiangPhysician Assistant1245729391
  4. Darren Favela, PA-CPhysician Assistant1265164644
  5. Jennifer Guerra, MSPA-CPhysician Assistant1831425875
  6. Roy Guizado, P.A.-C.Physician Assistant1023129293

Verify Javier Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A86715
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

31 family medicine physician records list a Claremont practice address

They are 31 of the 800 NPPES records with a Claremont practice address, and 16,272 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Javier Chang, M.D.'s NPI number?

Javier Chang, M.D.'s National Provider Identifier (NPI) is 1558565366, issued on Jun 14, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Javier Chang, M.D. located?

The NPPES record lists a practice address at 1601 Monte Vista Ave Ste 190, Claremont, CA, 91711. Phone: (909) 865-9977. Providers update this record themselves, so call before visiting.

How can I verify Javier Chang, M.D.'s license?

NPPES lists California license number A86715, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.